Crossword Puzzle 'What a kidder!'

Clue: 'What a kidder!'

America's 39th President (CARTER with 6 letters)
Alma mater of the 39th Pres. (USNA with 4 letters)
Actress Kidder (e.g. MARGO with 5 letters)
Actress Kidder of "Superman" (MARGOT with 6 letters)
It equals 0.3937 inch (CENTIMETER with 10 letters)
Super Bowl to be played in the year 3968, at the current rate (MMII with 4 letters)
39th VP (AGNEW with 5 letters)
39th vice president (AGNEW with 5 letters)
39th Veep (AGNEW with 5 letters)
39th V.P. (AGNEW with 5 letters)